/Engine/Source/Runtime/Engine/Classes/Kismet/KismetRenderingLibrary.h
Incredibly inefficient and slow operation! Read a value as-is from a render target using integer pixel coordinates.
static [FLinearColor](API\Runtime\Core\Math\FLinearColor) ReadRenderTargetRawPixel ( [UObject](API\Runtime\CoreUObject\UObject\UObject) * WorldContextObject, [UTextureRenderTarget2D](API\Runtime\Engine\Engine\UTextureRenderTarget2D) * TextureRenderTarget, int32 X, int32 Y, bool bNormalize )